Heating panel element



FIG. 1 is a front elevational view of a heating panel element showing my new design.

FIG. 2 is a side elevational view thereof.

FIG. 3 is a top plan view thereof.

FIG. 4 is a bottom plan view thereof.

FIG. 5 is an enlarged top perspective view thereof.

FIG. 6 is an enlarged bottom perspective view thereof. 

The ornamental design for a heating panel element, as shown. 